City Explorers' Arctic Polar Express Train 60470 Building Kit (1517 Pieces)Join Johnny Thunder and the explorers aboard the Arctic Polar Express Train! This locomotive is built to plough through icy terrain. Check out the panoramic passenger coach with its computer station and fold out sleeping area! Load the snow tractor and 360 camera onto the flat wagon, brave a frozen mountain tunnel with falling rocks and explore a deserted gold mine with resident Arctic foxes!